During No Doubt's early years, Gwen's style is heavily influenced by ska culture, featuring elements like checkerboard patterns, Doc Martens boots, and bold makeup. She often wore band tees and incorporated vintage pieces into her look.

Gwen becomes known for her signature bindi, a forehead decoration of South Asian origin, and her penchant for crop tops. This drew criticism and accusations of cultural appropriation. She continued to wear bright, bold colors and experiment with different hairstyles.

Gwen's solo career marks a shift towards a more glamorous and playful style. She embraces designer clothing, high heels, and elaborate hairstyles. Her signature red lipstick becomes a staple.

Stefani launches her fashion line, L.A.M.B. (Love. Angel. Music. Baby.), which reflects her personal style and incorporates elements of streetwear, punk, and high fashion. The line includes clothing, accessories, and fragrances.

Stefani launches a second fashion line, Harajuku Lovers, inspired by the street style of Tokyo's Harajuku district. The line features playful designs and colorful graphics. Like her use of bindis, this line also drew criticism for cultural appropriation.

Gwen continues to be a fashion icon, constantly evolving her style and influencing trends. She frequently collaborates with designers and makes appearances at fashion events, showcasing her unique and ever-changing look.